Accuracy of glass gauge-tubes

✍ Scribed by C.

• Publisher: Elsevier Science
• Year: 1880
• Tongue: English
• Weight: 59 KB
• Volume: 110
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/0016-0032(80)90237-9

✦ Synopsis

New Welding Proeess.--Krupp has recently taken out a German patent for a new process of welding tubes and tires. He draws the tube on a pair of ordinary rolls and heats the whole length of the portions which are to be welded in a portable fire-box, into which air is blown so that the heat is directed against the weld. After the necessary heat is obtained the rolls are set in motion and the place which is to be welded is repeatedly drawn through them.--L'Inge~*. Univ.

C.